I think it's a common misconception that walking is enough to keep someone in shape. It's all about getting your heart rate up and keeping it up for 30+ minutes. I walk all the time, both out of need and for leisure and exercise and I'm really not in THAT great of shape.

Oh yeah, and I love you no matter anyone's weight, don't forget! I also know that skinny guitar-playing girl you have as one of your icon is still inside you starving to get out. Well, hopefully not actually STARVING.